Earlier this week, we started a slow rollout of an improved Panda algorithm, and we expect to have everything done sometime next week.

Based on user (and webmaster!) feedback, we’ve been able to discover a few more signals to help Panda identify low-quality content more precisely. This results in a greater diversity of high-quality small- and medium-sized sites ranking higher, which is nice.

• Use 301 redirects to point all HTTP URLs to HTTPS. This is a no-brainer to most SEOs, but you'd be surprised how often a 302 (temporary) redirect finds its way to the homepage by accident

• Make sure all canonical tags point to the HTTPS version of the URL.

• Use relative URLs whenever possible.

• Rewrite hard-coded internal links (as many as is possible) to point to HTTPS. This is superior to pointing to the HTTP version and relying on 301 redirects.

• Register the HTTPS version in both Google and Bing Webmaster Tools

• Use the Fetch and Render function in Webmaster Tools to ensure Google can properly crawl and render your site.

• Update your sitemaps to reflect the new URLs. Submit the new sitemaps to Webmaster Tools. Leave your old (HTTP) sitemaps in place for 30 days so search engines can crawl and "process" your 301 redirects.